This is sufficiently baffling that he manages to attract enough of their attention for Wei Ying to--
...
There aren't a lot of great places to hide something around here. Some blown-up ground but, uh, that is kind of surrounded by Wens. She could try hiding it behind a tombstone but all that would require to be found would be someone walking in the wrong direction. There do not appear to be any convenient rabbit warrens.
But...dirt wasn't...the only thing thrown by the explosion...
And she can't help remembering her own musings when they were looking for Xue Yang's piece...
Swearing internally to make it up later somehow, she stuffs the pouch holding the Yin Iron into the ribcage of a withered and blackened corpse that she's pretty sure she can guess the identity of and sprints off to scrawl something nasty to deal with the Wens with.